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User manual Altec Lansing, model 515-G

Manafacture: Altec Lansing
File size: 676.97 kb
File name: 68c25724-eea7-4b26-9173-d69ad15cce67.pdf
Language of manual:en
Free link for this manual available at the bottom of the page



manual abstract


They are the highest performance low frequency drivers that Altec produces. When the ultimate in sound quality, efficiency, and response is needed, the 515-G Series is the answer. In-depth research into the properties of low frequency horns and vented horns has produced three drivers which are optimum for hom applications. When coupled with an appropriate horn, the 515-G Series loudspeakers provide the best possible combination of wide response, high efficiency, low distortion, and directivity control. The 515-G Series loudspeakers incorporate Altec's largest magnet structure, an edgewound aluminium flatwire voice coil, a light cone assembly, and a low distortion cloth suspension. The 515-8G and 515-16G carry on the Altec Lansing 515 tradition. The 515-8G provides extended bass response and extremely high linearity for optimum performance in vented hom enclosures. The 515-16G is intended for applications similar to those for the 515-8G, but where 16 ohm impedance and increased sensitivity is needed, as in dual loudspeaker enclosures such as the Altec 210/211 and 817A vented horns. Both loudspeakers are constructed of materials similar to 515’s of earlier years to produce the sound made popular in theater and studio applications. The 515-8GHP is the most efficient loudspeaker Altec has ever produced. This, coupled with high power handling, yields a speaker capable of very high sound pressure levels and good reliability. The hom-loaded design of the 515-G Series ensures that the 515-8GHP performs optimally in all vented hom enclosures. SPECIFICATIONS (continued) 515-8G 515-16G 515-8GHP Thiele/Small Parameters-Voice Coil DC Resistance (RE): Nominal Free-Air Resonance (fs): Total Q (Q^): Mechanical 0(0^): Electrical Q (QES): Equivalent Volume Compliance (VA5): Reference Efficiency (t|o): Peak Linear Displacement (XMAX): Peak Linear Volume Displacement (V„): Effective Piston Area of Driver Diaphragm (SD): 6.2 ohms 37 Hz 0.269 5.0 0.284 12.4 ft3 (351.1L) 6.0% 0.17 inches (0.43 cm) 22.4 in3 (367.1 cm3) 131.5 in2 (848.4 cm2) 11.3 ohms 37 Hz 0.215 5.0 0.225 12.2 ft3 (345.5 L) 7.5% 0.15 inches (0.38 cm) 19.7 in3 (322.8 cm3) 131.5 in2 (848.4 cm2) 5.6 ohms 37 Hz 0.187 4.5 0.195 12.1 ft3 (342.6 L) 8.6% 0.12 inches (0.31cm) 15.8 in3 (258.9 cm3) 131.5 in2 (848.4 cm2) Maximum Excursion Before Damage (Peak to Peak): 0.70 inches (1.8 cm) 0.70 inches (1.8 cm) 0.85 inches (2.2 cm) Voice Coil Winding Depth: 0.20 inches (0.51 cm) 0.25 inches (0.64 cm) 0.31 inches (0.79 cm) Magnetic Gap Depth: 0.47 inches (1.2 cm) 0.47 inches (1.2 cm) 0.47 inches (1.2 cm) Bl Factor (T-m): 16.4 25.1 19.1 Voice Coil Inductance: 0.58 mH 1.30 mH 0.68 mH Voice Coil Diameter: 3.0 inches (7.6 cm) 3.0 inches (7.6 cm) 3.0 inches (7.6 cm) Magnet Type: ferrite ferrite ferrite Magnet Weight: 132 oz. (3.74 kgs) 132 oz. (3.74 kgs) 132 oz. (3.74 kgs) Magnetic Flux Density: 15,000 gauss 15,000 gauss 15,000 gauss Voice Coil Type: edge-wound aluminum ribbon edge-wound aluminum ribbon edge-wound aluminum ribbon Frame: Die-cast aluminum Die-cast aluminum Die-cast aluminum Mounting Information-Baffle Opening Diameter: 14.1 inches (38.4 cm) 14.1 inches (38.4 cm) 14.1 inches (38.4 cm) Mounting Bolt Circle Diameter: 15.0 inches (44.0 cm) 15.0 inches (44.0 cm) 15.0 inches (44.0 cm) Loudspeaker Depth Rear Mounting: 6 7 inches (17.0 cm) 6.7 inches (17.0 cm) 6.7 inches (17.0 cm) Front Mounting: 5.9 inches (14.9 cm) 5.9 inches (14.9 cm) 5.9 inches (14.9 cm) Weight: 30 lbs. (13.6 kg) 30 lbs. (13.6 kg) 30 lbs. (13.6 kg) * AES power rating (measured Power = E2/R, using Pink Noise with a crest factor of 6 dB and a band-limit of 60 to 600 Hz). ** Low frequency limit is the 3 dB down point using the particular cabinet and the Thiele/Small parameters of the loudspeaker. *** Measured in the free-field at 4.0 feet (1.2 m) on axis with one watt (Power = E2/R) of pink noise band-limited from 100 to 1000 Hz. dB SPL dB SPL dB SPL dB SPL Frequency (Hz) Figure 1: Frequency Response and Impedance of 515-16G in 828G Enclosure Frequency (Hz) Figure 2: Frequency Response and Impedance of 515-16G in 816A Enclosure 8 ohms 20 50 100 200 500 1000 2000 5000 10000 20000 Frequency (Hz) Figure 3: Frequency Response and Impedance of Two 515-16G's in 817A Enclosure Ф Frequency (Hz) Figure 4: Frequency Response and Impedance of Two 515-16G‘s in 210A Enclosure m (A) Loudspeaker Diameter: 16.0 inches (40.6 cm). (D) (B) Bolt Circle Diameter: 15.0 inches (38.1 cm). (E) (C) Depth When Rear Mounted: 6.7 inches (17.0 cm). (F) Depth When Front Mounted: 5.9 inches (14.9 cm). Baffle Opening Diameter: 14.1 inches (35.9 cm). Bolt Hole Slots: 0.25 inch (0.6 cm) x 0.75 inch (2.0 cm); 8 slots spaced 45° apart. ARCHITECT'S AND ENGINEER'S SPECIFICATIONS The low frequency loudspeaker shall meet the following criteria. Power rating, up to_watts, measured E2/R, using a crest factorof 6 dB and band-limited from 60 to 600 Hz. Frequency response, uniform from_to 4000 Hz when u...


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